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Finding the Fourth Proportional to 11,748.70, 17,627.10 and 5,179.60

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Solution

The fourth proportional to 11,748.70, 17,627.10 and 5,179.60 is: 7,771.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,748.70 : 17,627.10 = 5,179.60 : x
  2. Step 2: Convert to fraction form
    11,748.70/17,627.10 = 5,179.60/x
  3. Step 3: Cross multiply
    11,748.70x = 17,627.10 × 5,179.60
  4. Step 4: Simplify right side
    11,748.70x = 91,301,327.16
  5. Step 5: Solve for x
    x = 91,301,327.16/11,748.70
  6. Step 6: Final answer
    x = 7,771.19

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